US2683074A
Expired / Lapsed
US
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Process for deodorizing and sterilizing air
Assignee: York Corp
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Filing: 1949-11-28
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Granted: 1954-07-06
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Expires: 1969-11-28
Abstract
No abstract record available.
Inventors
- 👤 Richard L Kuehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:31
CPC Classifications
A; A62; A62B; A62B21/00; F; F24; F24F; F24F8/00; F24F8/20; F24F8/24; Y; Y02; Y02A; Y02A50/00; Y02A50/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN THE PROCESS OF DEODORIZING AND STERILIZING AIR CIRCULATED IN OCCUPIED ENCLOSURES BY BRINGING THE AIR IN INTIMATE CONTACT WITH AN AQUEOUS SOLUTION OF POTASSIUM PERMANGANATE IN WHICH THE PERMANGANATE IS PRESENT IN THE AMOUNT OF AT LEAST 0.13 GRAMME PER LITRE OF WATER, THE IMPROVEMENT OF ADVANTAGEOUSLY INHIBITING THE ACIDIFICATION OF THE AQUEOUS SOLUTION BY ABSORPTION OF CO2 FROM THE AIR WHICH CONSISTS IN: ADDING A BUFLER COMPOUND TO THE AQUEOUS SOLUTION, SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALI EARTH METAL BICARBONATES, AND BEING PRESENT IN AN AMOUNT EFFECTIVE TO MAINTAIN THE SOLUTION ALKALINE.
Claim 2
Dependent Claim
101 words
IN THE PROCESS OF DEODORIZING AND STERILIZING AIR CIRCULATED IN OCCUPIED ENCLOSURES BY BRINGING THE AIR IN INTIMATE CONTACT WITH AN AQUEOUS SOLUTION OF POTASSIUM PERMANGANATE IN WHICH THE PERMANGANATE IS PRESENT IN THE AMOUNT OF AT LEAST 0.13 GRAMME PER LITRE OF WATER, THE IMPROVEMENT OF ADVANTAGEOUSLY INHIBITING THE ACIDIFICATION OF THE AQUEOUS SOLUTION BY ABSORPTION OF CO2 FROM THE AIR WHICH CONSISTS IN: ADDING A BUFLER COMPOUND TO THE AQUEOUS SOLUTION, SAID COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL AND ALKALI EARTH METAL BICARBONATES, AND BEING PRESENT IN AN AMOUNT EFFECTIVE TO MAINTAIN THE SOLUTION ALKALINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-05 | 1958-01-04 | 1958-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-05 | 1962-01-04 | 1962-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-05 | 1966-01-04 | 1966-07-06 | $7700.00 | Window Closed / Lapsed |